Composite battery diaphragm and preparation method thereof
The invention discloses a composite battery diaphragm and a preparation method thereof, the surface of the composite battery diaphragm is flat and smooth, the whole composite battery diaphragm is of a three-layer structure including a melt-blown layer, a spunbond layer and a nano cellulose fiber lay...
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| creator | LIU ZHIGANG DONG QIUCHUN XUE YUNQING LIU GAOJUN XUE SHAN ZHANG XUJIE DUAN SHIWEN JIA GUOZHONG SUN YAO |
| description | The invention discloses a composite battery diaphragm and a preparation method thereof, the surface of the composite battery diaphragm is flat and smooth, the whole composite battery diaphragm is of a three-layer structure including a melt-blown layer, a spunbond layer and a nano cellulose fiber layer, the melt-blown layer is located in the middle as a middle layer, the spunbond layer is located below the melt-blown layer, and the nano cellulose fiber layer is located below the spunbond layer. The nano cellulose fiber layer is positioned above the melt-blown layer; the melt-blown layer is prepared from PP with a melt index of 1200-1500 g/10 min as a raw material, the spunbond layer is prepared from PP with a melt index of 30-45 g/10 min as a raw material, and the nano-crystalline cellulose fiber layer is prepared from nano-crystalline cellulose fiber slurry added with pure water. The composite diaphragm obtained by the invention has excellent high temperature resistance, thermal dimensional stability, good ly |
| format | Patent |
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The nano cellulose fiber layer is positioned above the melt-blown layer; the melt-blown layer is prepared from PP with a melt index of 1200-1500 g/10 min as a raw material, the spunbond layer is prepared from PP with a melt index of 30-45 g/10 min as a raw material, and the nano-crystalline cellulose fiber layer is prepared from nano-crystalline cellulose fiber slurry added with pure water. 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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | Composite battery diaphragm and preparation method thereof |
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